Method and device for gait analysis based on acceleration and angular rate sensor

Abstract

The invention discloses a method and device for gait analysis based on an acceleration and angular rate sensor. The acceleration and angular rate sensor is placed on shoes. The method comprises the following steps of obtaining movement data acquired by the acceleration and angular rate sensor; performing pretreatment on the movement data, and caching the pretreated movement data; performing gait cycle detection on the cached movement data, and when a gait cycle is detected, performing feature extraction on the movement data of the single gait cycle to generate a characteristic vector; and inputting the characteristic vector to a motion model which is trained in advance, and according to the outputting result of the motion model, performing analysis on the gait characteristics. The method disclosed by the embodiment of the invention adopts a gait analysis scheme based on the acceleration and angular rate sensor, the calculation amount is small, the real time performance is high, requirements for hardware are not high, hardware can be made into compact and portable hardware and is placed in the shoes, and the method has the advantages of being low in cost, convenient to carry, free from site limit and the like, and is high in analysis accuracy.

Description

technical field [0001] The invention relates to the field of smart wear technology, in particular to a gait analysis method and device based on acceleration and angular velocity sensors. Background technique [0002] Now, with the deepening of research on human physiological structure, the demand for real-time monitoring and feedback of human motion status has become more and more intense, and gait analysis is just a good way. In the field of sports health, gait analysis can provide a scientific basis for the evaluation of sports quality by obtaining real-time data of sports, and provide help for improving sports performance and preventing sports injuries. [0003] Different working principles and application occasions, gait analysis is also diversified. There are mainly (1) gait analysis method based on pressure information: the pressure sensor is embedded in the insole, and the pressure change of the sole of the foot can be detected during exercise. (2) Gait analysis meth...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a gait analysis method and device based on acceleration and angular velocity sensors, aiming to solve the problems of low precision and high cost of gait analysis methods in the prior art

Images